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Finding the Fourth Proportional to 339,955.29, 469,149.81 and 187,004.85

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Solution

The fourth proportional to 339,955.29, 469,149.81 and 187,004.85 is: 258,073.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,955.29 : 469,149.81 = 187,004.85 : x
  2. Step 2: Convert to fraction form
    339,955.29/469,149.81 = 187,004.85/x
  3. Step 3: Cross multiply
    339,955.29x = 469,149.81 × 187,004.85
  4. Step 4: Simplify right side
    339,955.29x = 87,733,286,565.81
  5. Step 5: Solve for x
    x = 87,733,286,565.81/339,955.29
  6. Step 6: Final answer
    x = 258,073.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.